Deserialization of Untrusted Data Affecting skopeo-tests package, versions <2:1.14.6-2.module+el8.10.0+90948+3b47585b


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.53% (41st percentile)

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  • Snyk IDSNYK-ORACLE8-SKOPEOTESTS-17895349
  • published8 Jul 2026
  • disclosed22 May 2026

Introduced: 22 May 2026

CVE-2026-39832  (opens in a new tab)
CWE-502  (opens in a new tab)

How to fix?

Upgrade Oracle:8 skopeo-tests to version 2:1.14.6-2.module+el8.10.0+90948+3b47585b or higher.
This issue was patched in ELSA-2026-35833.

NVD Description

Note: Versions mentioned in the description apply only to the upstream skopeo-tests package and not the skopeo-tests package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

When adding a key to a remote agent constraint extensions such as restrict-destination-v00@openssh.com were not serialized in the request. Destination restrictions were silently stripped when forwarding keys, allowing unrestricted use of the key on the remote host. The client now serializes all constraint extensions. Additionally, the in-memory keyring returned by NewKeyring() now rejects keys with unsupported constraint extensions instead of silently ignoring them.

CVSS Base Scores

version 3.1